How to view H80 fan RPM?
- Thread starter Cythx
- Start date
I don't have enough fan headers to do that.
Also I wouldn't be able to use the H80 fan controller with fan headers
Right you have to plug the little 3 pin connector into an available tach reporting motherboard header.
If you don't have an available motherboard header then you could....
1) Shove your tongue onto the tach contact, and count the electric impulses in a second and divide by two.
2) Connect the connector up to an oscilloscope and work out what the speed is.
3) Splice the wire coming from the Corsair unit onto one of the other fans wiring so you can retain the header but lose tach of the other fan.
or just free up a motherboard header, or just not know what the fan speed is.
Still isn't the H80 fan controller just a three position thing where it basically spins them at 3 determined speeds 2500, 2000 or 1600 or something. So I wonder if it's really required, other than being nice to know exactly what the speed is.
If you don't have an available motherboard header then you could....
1) Shove your tongue onto the tach contact, and count the electric impulses in a second and divide by two.
2) Connect the connector up to an oscilloscope and work out what the speed is.
3) Splice the wire coming from the Corsair unit onto one of the other fans wiring so you can retain the header but lose tach of the other fan.
or just free up a motherboard header, or just not know what the fan speed is.
Still isn't the H80 fan controller just a three position thing where it basically spins them at 3 determined speeds 2500, 2000 or 1600 or something. So I wonder if it's really required, other than being nice to know exactly what the speed is.
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There are 3 positions I've heard.
Their supposed to ramp up as temps get hotter, so like this:
Low, 1000>1500
Med, 1500>2000
High, 2000>2500
But the thing is, no matter what setting I put on, I can't really hear a difference. So I'm wondering if they are just performing at their stock speeds (these are Noctua NF-P12, non-PWM), as they don't sound obtrusively loud.
So there's no way to tell fan speed besides when connected to header?
There is 1 spare header free but it seems that the header is faulty and reduces the RPM of any fan attached to it.
Their supposed to ramp up as temps get hotter, so like this:
Low, 1000>1500
Med, 1500>2000
High, 2000>2500
But the thing is, no matter what setting I put on, I can't really hear a difference. So I'm wondering if they are just performing at their stock speeds (these are Noctua NF-P12, non-PWM), as they don't sound obtrusively loud.
So there's no way to tell fan speed besides when connected to header?
There is 1 spare header free but it seems that the header is faulty and reduces the RPM of any fan attached to it.
I wasn't aware the H80 varied speed like that. I've never owned one or really paid that much attention to reviews.
The little black connector attached near the Molex power connector only has the tach (or pin 3) wire connected, or at least it did on image I saw, which means that it'll only report the speed of whatever sensor Corsair have designed it to. No variance in speed should result from plugging it in to the motherboard as the tach wire is not normally used as a control wire.
The little black connector attached near the Molex power connector only has the tach (or pin 3) wire connected, or at least it did on image I saw, which means that it'll only report the speed of whatever sensor Corsair have designed it to. No variance in speed should result from plugging it in to the motherboard as the tach wire is not normally used as a control wire.